TSSA Urges Ontarians to Keep Gas Meters and Fuel-Burning Appliance Vents Free from Snow and Ice
Toronto, ON, February 13, 2025 – As a major winter storm impacts parts of Ontario, the Technical Standards and Safety Authority (TSSA) urges homeowners and residents to check their gas meters and the external exhaust outlets for furnaces, fireplaces, water heaters and all fuel-burning devices to ensure no snow or ice builds up.
Exhaust vents, in particular, often extend out of the side of a home as low as one foot above ground, so they have the potential to get covered and blocked easily without a homeowner’s knowledge, especially when a homeowner is shoveling snow or using a snowblower or when there is a severe snow build-up. When vents are blocked, it can increase the risk of carbon monoxide (CO) building up inside a home.
CO is a danger commonly referred to as the “Silent Killer” as you can’t smell it, see it or taste it. Data show that in Ontario, about 65% of all CO incidents occur in homes.
Additionally, a snow-covered gas meter can interfere with its ability to regulate gas pressure, creating other serious safety risks.
When snow piles up, check your gas meter and vents. Take Action. Think Safe.
1. Use a car brush or broom to gently remove snow from gas meters and vent pipes. Avoid sharp tools to prevent damage.
2. Never shovel, plow, or blow snow against the meter or vent pipe.
3. Be cautious when using snow blowers to avoid bumping the meter.
4. Refrain from kicking the meter or vent pipes to clear ice or snow.
5. Remove icicles from overhead eaves to prevent dripping water from freezing on the meter or vent pipes.
Prevent Carbon Monoxide Poisoning
TSSA recommends that homeowners install and regularly test certified CO alarms. These alarms provide an early warning of dangerous CO levels, giving residents time to respond and potentially save lives.
CO poisoning symptoms include dizziness, headaches, and nausea. If these symptoms appear, immediately move to fresh air and call emergency services.
For more information visit: COsafety.ca
About TSSA
The Technical Standards and Safety Authority (TSSA) is one of Ontario’s public safety regulators mandated by the Government of Ontario to enforce provincial safety regulations and enhance public safety. Throughout Ontario, TSSA regulates the safety of amusement devices, boilers and pressure vessels, elevating devices, fuels, operating engineers, and ski lifts. Its range of safety services include public education and consumer information, certification, licensing and registration, engineering design review, inspections, investigations, safety management consultation, compliance support and enforcement and prosecution activities. The organization’s vision is to be a valued advocate and recognized authority in public safety.
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For more information, please contact:
Alexandra Campbell
Vice President, Communications, Stakeholder Engagement and Customer Service
Technical Standards and Safety Authority
Telephone: 416-734-6227
Email: media@tssa.org
The Technical Standards and Safety Authority (TSSA) has issued an advisory clarifying the requirements for the foundations of residential or small commercial standby generators with a capacity of up to 26 kW and fueled by natural gas or propane.
According to CSA B149.1-20 Natural Gas and Propane Installation Code, these generators must be installed on a firm, level foundation and in accordance with the manufacturer's instructions.
Manufacturers often require, recommend or permit installation on a poured concrete pad, a prefabricated concrete slab, compacted soil, gravel, patio stones or other similar materials. TSSA will consider an installation compliant with clause 7.2.1.6 if the foundation meets the requirements or recommendations outlined in the manufacturer's instructions.
If the manufacturer’s instructions are unclear, do not specify foundation requirements or provide recommendations only, TSSA will deem the installation to be compliant with clause 7.2.1.6 if the foundation meets the following requirements:
- It is composed of compacted crushed gravel or limestone base and a non-combustible platform (such as patio stones or a concrete slab); and
- The top surface of the foundation is at least 2 inches above the surrounding ground surface.
Please refer to the advisory for full details.
Consultation closes on March 7, 2025
TSSA invites you to provide feedback on its publication of the Code Adoption Document (CAD) for Fuel Oil.
The CAD adopts a series of national safety codes into regulation. There are two separate codes adopted in the CAD which was last updated and published in 2021.
The opportunity to provide feedback will be open until March 7, 2025. TSSA aims to publish the final CAD approximately two months after reviewing consultation feedback.
Please visit EngageTSSA to comment on the 2025 Fuel Oil CAD.
The Technical Standards and Safety Authority (TSSA) has posted a new advisory outlining new licensing regime requirements for the transportation of compressed gas.
As of February 3, 2025, TSSA has adopted a new licensing regime that will require a licence to be issued for each transport truck carrying a bulk container certified as meeting the requirements of Transport Canada or the U.S. Department of Transportation. A licence will be issued only if it has passed an inspection performed by a TSSA inspector.
Previously, TSSA permitted the transport of compressed hydrogen and compressed natural gas through a non-permanent variance application that expires every two years. Approved variances are tied to user location and may or may not include a pressure reduction system and more than one tube trailer under the same approval.
Read the advisory for details.